Tú y tu crush comen las hamburguesas y pasan un buen rato. ✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info | Información

Hermosas ilustraciones de [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot). 🎨

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Imagina que eres la computadora / programa 🤖 en esa historia.

你和戀人享用這頓大餐，整個過程十分開心✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info

漂亮的插畫來自 [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot)。 🎨

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想像你是故事中的電腦或程式 🤖。

當你排隊時，你在放空😴，等待輪到你，沒有做任何「生產性」的事情。但這沒關係，因為收銀員只是接單（而不是準備食物），所以排隊速度很快。

你们享用了汉堡，整个过程都很开心。✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info | 信息

漂亮的插画来自 [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot)。🎨

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在那个故事里，假设你是计算机程序 🤖 。

当你在排队时，你只是闲着😴， 轮到你前不做任何事情（仅排队）。但排队很快，因为收银员只接订单（不准备订单），所以这一切都还好。

You and your crush eat the burgers and have a nice time. ✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info

Beautiful illustrations by [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot). 🎨

///

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Imagine you are the computer / program 🤖 in that story.

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info | Info

Die wunderschönen Illustrationen stammen von [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot). 🎨

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Stellen Sie sich vor, Sie wären der Computer / das Programm 🤖 in dieser Geschichte.

3. **Fallback**: English (from `fess_label.properties` and `fess_message.properties`)

### Document Language Detection

During crawling and indexing, Fess:

1. Detects language from document content using Apache Tika
2. Validates against `supported.languages` list
3. Creates language-specific fields (e.g., `content_ja`, `title_en`, `content_sv`)
4. Applies language-specific analyzers for better search results

あなたと好きな人はハンバーガーを食べて、楽しい時間を過ごします。✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info | 情報

美しいイラストは [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot) によるものです。🎨

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この物語で、あなた自身がコンピュータ/プログラム 🤖 だと想像してみてください。

列にいる間は、何も「生産的」なことをせず、自分の番を待つだけのアイドル状態 😴 です。ただしレジ係は注文を取るだけ (作りはしない) なので列は速く進み、問題ありません。

여러분과 짝사랑 상대는 햄버거를 먹으며 좋은 시간을 보냅니다. ✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info | 정보

아름다운 일러스트: [Ketrina Thompson](https://www.instagram.com/ketrinadrawsalot). 🎨

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이 이야기에서 여러분이 컴퓨터/프로그램 🤖 이라고 상상해보세요.

## Technology Stack

- **Java**: 21+ (requires Java 21 or higher)
- **Build System**: Maven 3.x
- **DI Container**: LastaFlute DI
- **HTTP Client**: Apache HttpComponents
- **Content Extraction**: Apache Tika, Apache POI, PDFBox
- **Testing**: JUnit 4, UTFlute, Testcontainers
- **Storage Backends**: OpenSearch, Memory-based

## Quick Start

### Prerequisites

- Java 21 or higher
- Maven 3.6 or higher

        } else {
            cmdList.add("-Dfess.log.level=" + logLevel);
            if ("debug".equalsIgnoreCase(logLevel)) {
                cmdList.add("-Dorg.apache.tika.service.error.warn=true");
            }
        }
        stream(fessConfig.getJvmCrawlerOptionsAsArray())
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(value -> cmdList.add(value)));